package com.raincici.springcloud.service;


import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author R4in
 * @date 2021/8/28 10:02
 * @description
 */
@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id){
        return "线程池:"+Thread.currentThread().getName()+"paymentInfo_OK,id: "+id+"\t"+"O(∩_∩)O";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value="5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int time = 3;
        try{ TimeUnit.SECONDS.sleep(time);}catch (Exception ex){ex.printStackTrace();}
        return "线程池："+Thread.currentThread().getName()+"paymentInfo_TimeOut,id:"+id+"\t"+"O(∩_∩)O";
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+"paymentInfo_TimeOut,id:"+id+"\t"+"o(╥﹏╥)o";
    }

    //=========服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//请求时间
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//在请求时间内的请求次数的失败率大于60%就开启断路器
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }

}
